Trogoderma horaki sp. nov.
(Figs. 1-3)
Type material. Holotype ♂: E Madagascar, Tamatave distr., Andasibe, 17- 30.12.2001, J. Horák leg., (JHAC). Specimen of the species described here is provided with a red printed label with the following text: “ HOLOTYPE Trogoderma horaki sp. n. Jiří Háva det. 2012”.
Description.
Male. Body measurements (in mm): TL 1.6 PW 0.9 PL 0.4 EL 1.2; cuticle black on dorsal and ventral surfaces; small and oval. Head coarsely punctate with long yellowish-brown pubescence. Palpi entirely brown; pubescence on mentum denser. Ocellus on front present. Antennae 11-segmented, antennal club 4-segmented (Fig. 2), light brown. Pronotum coarsely punctate like head with long yellowish-brown pubescence; anterior angles not visible from above. Scutellum very small, triangular without pubescence. Elytra coarsely punctate; cuticle black with one large orange spot near apex and one transverse fasciae covered by yellow pubescence (Fig. 1). Epipleuron entirely black with yellow pubescence. Legs brown with short yellow pubescence; tibiae without spines. Meso-metasternum with short yellow pubescence. Abdominal sternites with short yellow pubescence. First visible abdominal sternite with distinct oblique discal striae. Aedeagus (Fig. 3).
Female. Unknown.
Differential Diagnosis. The new species differs by the characters mentioned in the following key to all known species of Madagascar.
1(4) Elytra bi- or three- colorous.
2(3) Form of body oval; antennal club with 3-5 segments.
- Elytra with one orange transverse fasciae and apical part covered by yellowish-white pubescence (Fig. 4); antennal club with 5 segments; TL 2.2-2.5 ………………………………………………………………………………… T. wolfgangi Háva & Herrmann, 2008
- Elytra with one orange fasciae and apical isolated spot covered by yellow pubescence (Fig. 1); antennal club with 4 segments; TL 1.6 …… T. horaki sp. nov.
- Elytra brown with orange-red fasciae covered by white pubescence; antennal club with 3 segments ………………………………………………………………… T. impressiceps (Pic, 1915)
- Elytra black with one large orange spot on apex and one transverse fasciae of white pubescence on the middle; antennal club with 4 segments ………………………………………………………………………………………………………… T. sambiranum Háva, 2009
- Body very large TL 3.10-3.55 mm, elytra brown with more small spots covered by white pubescence; antennal club with 4 segments………………………………………………………………………………………………………… T. seminigrum Pic, 1915
- Body very small TL 1.77-2.27 mm; elytra black with small spots covered by white pubescence; antennal club with 6 segments…………… T. madecassum (Pic, 1924)
3(2) Elongated body shape; antennal club with 7 segments; each elytron with three orange-red fasciae covered by yellow pubescence…………… T. trifasciatum Háva, 2009
4(1) Elytra unicolorous, brown, covered by yellow pubescence; without fasciae or spots; antennal club with 5 segments…………………………………… T. taomasinum Háva, 2009
Etymology. Named in honour of Jan Horák (Prague), worldwide known specialist in Mordellidae ( Coleoptera).